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Sonbull [250]
3 years ago
8

A builder makes drainpipes that drop 1 cm over a

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
8 0

Answer:

700.4 cm

Step-by-step explanation:

This involves two similar triangles.

Both triangles are right triangles.

One has legs measuring 1 cm and 30 cm. We can find the hypotenuse by using the Pythagorean theorem.

(1 cm)^2 + (30 cm)^2 = c^2

c^2 = 901 cm^2

c = sqrt(901) cm

The second triangle has one leg with length 700 cm. This leg corresponds to the 30-cm leg in the other triangle. Since the triangles are similar, we can use a proportion to find the hypotenuse of the second triangle.

(30 cm)/(700 cm) = [sqrt(901) cm]/x

3/70 = sqrt(901) cm/x

3x = 70 * sqrt(901) cm

x = 70 * sqrt(901) cm/3

x = 700.4 cm

Answer: 700.4 cm

natita [175]3 years ago
8 0

Answer:

700.4 cm

Step-by-step explanation:

trust me i've done khan academy

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566.4

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55>-7x + 6
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Uma loja de brinquedos tem uma vitrine com várias prateleiras contendo 21 bonecas, 18 carrinhos de brinquedo e 15 bonecos de açã
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Responder:

3

Explicação passo a passo:

Dado :

Total de brinquedos:

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Carros Roy = 18

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Número de prateleiras:

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A contractor buys 8.2 square feet of sheet metal. She used 2.1 square feet so far and has $183 worth of sheet metal remaining. W
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Given that total amount of metal in the beginning = 8.2 square feet

Given that used amount of metal = 2.1 square feet

Then remaining amount of metal = (8.2-2.1) = 6.1 square feet

Now it says that "$183 worth of sheet metal remaining".

That means cost of 6.1 square feet is $183.

Let cost of 1 square feet of the metal = x

Then cost of 6.1 square feet of the metal = 6.1x


Both expressions 6.1x and $183 represent the cost of the remaining metal so the required equation will be:


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Now we can solve it to find the solution

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Hence final answer is $30 per square feet.

3 0
3 years ago
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